The 15 Worst Quirk Drawbacks In My Hero Academia, Ranked

Over 4.1K Ranker voters have come together to rank this list of The 15 Worst Quirk Drawbacks In My Hero Academia, Ranked

It's great to have a quirk...right? Well, sort of. Some quirks have some serious drawbacks for the user, which makes you wonder if it's even worth having the quirk in the first place.

Eri's quirk, Rewind, was so hard to control when she was little that she ended her father's life by mistake. And while Izuku Midoriya's One For All is undoubtedly powerful, he's had to get used to regularly shattering his entire skeleton. Not every quirk with a huge drawback is that extreme - Ochaco Uraraka's Zero Gravity just makes her nauseated. But even seemingly small things like that can be difficult to overcome. 

Vote up the biggest quirk drawbacks in My Hero Academia that you'd never want to have to deal with. 

  • The Quirk: Using Cremation, Dabi can produce blue flames that burn at 2,000°C (3,632°F). These are so powerful that they can reduce their targets to ash within seconds. They get stronger when Dabi experiences strong emotions.

    The Drawback: Unlike most people with fire-based quirks, Dabi lacks resistance to fire. This means that he's only minimally able to survive his own flames. He can't use his quirk for long periods without risking his life, and he's sustained repeated, severe burns because of it. 

    4,289 votes
  • The Quirk: Electrification lets Kaminari create and (minimally) control electricity. He can use this to shock his opponents, but he can also use it for things like charging his cell phone. 

    The Drawback: If Kaminari overuses his quirk, he essentially fries his brain. This makes him unable to think clearly or participate in battle. He's lucky he's in an anime, because realistically speaking the consequences of repeatedly electrocuting yourself would be much more dangerous! 

    3,878 votes
  • The Quirk: Using Permeation, Mirio Togata can make all or part of his body intangible, and pass them through solid matter. 

    The Drawback: This quirk looks simple, but only because Mirio is so good at using it. In reality, it's incredibly difficult to pull off. If he fully activates his quirk, his clothes fly off of his body. This is embarrassing, but it gets worse. While he's using his quirk, he can't use any of his senses or breathe, because light, oxygen, sound, and other things are passing through him. The first part is challenging on a logistical and emotional level, but the second part could mean suffocating. That brings us to the biggest drawback - done incorrectly, Permeation could end Mirio's life. 

    3,736 votes
  • The Quirk: By applying all five of his fingers to any solid living or non-living object, Shigaraki Tomura can cause it to disintegrate. The effects can not only spread throughout the entire body or object he touched but can also spread to anyone or anything else that comes in contact with it. This creates a domino effect.

    The Drawback: As a child, Tomura could not fully control his quirk, and ended up accidentally annihilating his entire family. Though he has better control as an adult, he has to be constantly aware of his own hands to avoid causing damage he doesn't intend. It's also possible that he's not fully immune to it himself - his skin is extremely dry and perpetually flaking off. This could be just a coincidence, but it's heavily implied that this is a manifestation of his quirk. 

    3,422 votes
  • The Quirk: Rewind allows Eri to revert living things to an earlier state by making their 'time' go backward. She can make someone younger, rewind them to before they sustained an injury or contracted an illness. Kai Chisaki even thinks that she could use it to reverse human evolution. 

    The Drawback: Eri's quirk manifested when she was too young to have any control over it. She accidentally rewound her father so far that he no longer existed, effectively ending his life. Naturally, this was incredibly traumatic for both Eri and her mother - and it also left her vulnerable to being used in Kai Chisaki's grotesque experiments. These days, she's learning to use her quirk to help people, not hurt them, but it was a painful journey to get there, and the cost of messing up is high. 

    3,161 votes
  • 6
    2,345 VOTES

    Mustard Has No Immunity To His Poisonous Gas

    The Quirk: Mustard can emit a toxic gas that puts his opponents to sleep. He can also read his opponent's movements by the subtle fluctuations of the gas. 

    The Drawback: Mustard isn't immune to his own quirk. This means that unless he's wearing a gas mask, he can't use it - that is, unless he wants to be knocked out, too. Considering his young age and relatively weak abilities, it'd be pretty simple for a stronger opponent to just rip the mask off. Since he has to continuously produce the gas for it to be effective, this would likely spell the end of the fight. 

    2,345 votes